Math 35 Introduction

Section 4.2Intersections, Unions & Compound InequalitiesUsing Set Diagrams and NotationIntersections of SetsConjunctions of Sentences andUnions of SetsDisjunctions of Sentences orMore Interval NotationSpecifying Domains

4.21Sets and Compound InequalitiesCompound Inequalities: Two inequalities joined by and or or

Intersection Union Members in Common All Members in Both and or

4.22Intersection: Members in Common

())(4.23Notation:Abbreviated Compound Inequalities

4.24Solve & Graph

[)4.25

(both must be true)Solve & Graph a Conjunction and

[((4.26No Solutions:Disjoint Sets The Empty Set

4.27

(both must be true)Solve & Graph a Disjoint Conjunction

()4.28Union: All Members in Both Sets

())(4.29

(either can be true)Solve & Graph a Union or

[))[4.210

Try another (either can be true)Solve & Graph a Union or()()4.211The Biggest Possible Solution

[)4.212Expressing DomainsWith Interval Notation

[()4.213Where do we go from here? Section 4.3 Absolute Value Equations & Inequalities4.214